Flushing apparatus



April 8, 1930. A QPPERMAN 1,753,997

FLUSHING APPARATUS Filed Nov. 8, 1927 v INVEPITOR 4 WWW.

V. WWW-r0,

ATTORNEYS.

Patented Apr. 8, 1930 UNITED STATES FREDERICK OPPERMAN, 0F GREENWICH,CONNECTICUT FLUSHING APPARATUS Application filed November This inventionrelates to an improvement in flushing apparatus such as employed inflush tanks, for example, and has for one of its objects, the provisionof an improved valve mechanism therefor, this valve mechanism being soconstructed and arranged that the same will remain in serviceablecondition for a very much longer period than valve mechanisms now in usefor the same purpose, and in which a valve of rubber is usuallyemployed.

A further object of this invention is the provision of flushingapparatus employing a flush valve in which a new and novel seat orseating arrangement is provided for the valve, this seat being of such anature that the valve will always seat fluid tight.

A still further object of my invention is the provision of flushingapparatus employing a hollow valve of improved construction and seatingin or on a new novel seat, guiding means being provided for the valve,to insure that the valve will be guided properly towards its seat in theflushing operation.

As mentioned above, it is customary or usual in this type of apparatusunder present practice, to employ a hollow rubber valve, which soonbecomes worn and will not seat properly, thereby allowing a constantescape of water from the tank. The action of the water in the tank uponsuch valve also causes the valves to deteriorate and become leakythereby rendering them unfit for satisfactory use.

In the present construction I provide a metal valve of novelconstruction cooperating with an improved seat, means being providedwhereby should the valve, which is of hollow construction, become leakyfrom any cause, the water entering the same will flow therefrom bygravity and hence not interfere with proper functioning of the valve.

In the drawings accompanying this application I have shown oneembodiment of my invention- 8, 1927. Serial No. 231,819.

Fig. 1 illustrating the same in sectional elc= vation, while Fig. 2'is asection taken on the line 22 of Fig. '1.

Inasmuch as my improved apparatus is capable of use with flushingapparatus constru'cted'in the usualway so far as tank and operatingmechanisms are concerned, .I have not deemed it necessary to show theseparts as they are well known in this art.

The drawings show at 1, a pipe through which the water from the flushtank is to escape, the upper end of this pipe 1 being flared asindica-teclat 2, to provide an inclined or pitched or tapered valveseat, circular, when viewed inplan. The'pipe 1 is-providedwith twospiders 3 and l extending transversely thereof and each providedcentrally with an aperture "5. The spiders 3 and .4: are guiding spidersprovided for the purpose of assisting. in the guiding of'my improvedflushvalve 6 to its seat. The number of guiding devices employed mayvary, two having been shown merely for purposesof clarity ofdescription.

The flush valve 6 is of metal, for example,-

aluminum, and is of hollow construction as illustrated, the lowerportion of the sides thereof being tapered or inclined as indicated at7'to provide a frustdconical formation, the base of the cone facing awayfrom the seat '2. The bottom of the valve designated 8 is planar but maytake other forms if desired. The inclination of the sides of the valvebody is different from that of the valveseat-and Where the bottom 8meets the i apex of the fru-sto cone 7 provides an edge 9 which seats onthe valve seat 2. In other words, the seat 2 is tangential to the valvesides to provide a line-contact; I have found by actual use of a valveconstructed'in acunderstood that the bottom 8 and the top 10 of thevalve may be integral with the side walls thereof just as illustrated.

As above mentioned, means are employed for guiding the valve 6 to itsseat 2, and this means is provided by attaching a pipe 12 to the bottom8 of the valve, this pipe being screwed into the bottom or attached tothe same in any other convenient fashion, the pipe, however, in allinstances, preferably communicating with the interior of the valve sothat should the valve leak from any cause, water entering the same willbe free to escape therefrom through the guiding pipe 12. The pipe 12passes downwardly through the orifices 5 of the guiding spiders 3 and 4and to prevent the valve being lifted beyond the limits of the guidingpipe 12, the lower end of the same is provided with a cotter pin 13 ofsuch dimensions that the same will not pass through the orifice 5 in thelower guiding spider 4. It is obvious that various modifications may bemade in the construction above described within the purview of thisinvention.

lVhat I claim is:

1. In flushing apparatus, the combination of a frusto-conical hollowmetallic valve, a frusto-conical seat therefor, the bases of said frustocones facing the same direction but making different angles with thehorizontal and a guide tube for the valve opening into said valve.

2. In flushing apparatus, the combination of a hollow metallic floatvalve, a seat therefor, the periphery of said valve adjacent the seatbeing tapered, said seat being pitched at a different angle from thetaper of the valve so that a line contact is produced between the valveand seat below the top of the seat.

3. In flushing apparatus, the combination of a hollow metallic valvehaving tapered sides, a tapered seat therefor tapered at a greater anglethan the valve sides, and a guide tube communicating with the interiorof said valve and attached to the bottom of said valve.

4. In flushing apparatus, the combination of a pipe, one end of which isshaped to provide a tapered valve seat, a hollow valve having taperedsides cooperating with said seat, said seat being tapered at a greaterangle than the taper of the valve body, a tube attached to the bottom ofsaid valve and communicating with the interior thereof, and guides forsaid tube extending transversely of said pipe.

5. In flushing apparatus, the combination of a metallic valve having afrusto-conical formation, a tapered seat therefor, the seat beingtapered at a greater angle than the valve so as to provide a linecontact between the valve and seat below the top of the seat.

6. In flushing apparatus, the combination of an inclined valve seat, ahollow metallic

